They took an RV trip with their 10-month-old daughter and his parents

Celebrities' lives may look glamorous, but all, apparently, is not as it seems. Once they're off the red carpet and out of their designer gowns, their lives are pretty much the same as everyone else's—which, for Mila Kunis and Ashton Kutcher, means their plans for a grand, romantic honeymoon sometimes get completely derailed, thanks to a pair of in-laws, a 10-month-old baby, and a never-ending stream of RV troubles.

During an appearance on The Tonight Show this week, Kunis told Jimmy Fallon a condensed version of the hilariously disastrous RV trip she and Kutcher took across California shortly after they tied the knot in July 2015. "If you've ever seen the National Lampoon movies, our honeymoon was like a real-life National Lampoon's honeymoon. I'm not exaggerating. I'm not saying it for a laugh. We also went honeymooning with my in-laws," she said, admitting that it all began with her making a "boo-boo" by giving Kutcher a gift card to an RV rental service—"not thinking that my husband's gonna go, 'Oh!

That's our honeymoon!'"

Alas, he did, so they set off in a "tin can on wheels" with their then-10-month-old daughter Wyatt and Kutcher's parents following them in "the Taj Mahal of RVs." To start, just eight hours into the trip, the air conditioner in Kunis and Kutcher's RV broke—in the middle of the 110-degree California desert—and then, on the way to get it fixed, the whole family had to get out and walk three miles after Apple Maps navigated them onto an unsafe, unpaved road.

The trouble didn't end there, though: "My wonderful, beautiful mother-in-law picked the RV parks that we were staying in, but she didn't use the Internet. She used books," Kunis said. "She was like, 'We'll end in Napa, it'll be beautiful!' I was like, 'You know what? What could go wrong?' Let me tell you: an RV park not in Napa, but an hour outside of Napa, with two prisons." She added, "My husband looked at me and goes, 'I quit,' and I was like, 'Me too.'"

Somehow, though, that road trip from hell didn't put Kunis completely off the idea of RV-ing. When Fallon asked whether she'd ever let Kutcher rent an RV again, she immediately, genuinely responded, "Yeah, absolutely! It was fantastic." Sounds like the Bad Moms star has a different definition of "fantastic" than the rest of us.